Installation:Within 5 meters, find the best place to install the solar panel, as close as possible to the south, away from light obstructions, such as buildings, trees, fences, shrubs or shadows.Note:- Please confirm the switch is under "on" status so that the light could be charged normally and auto lights on at night.- It should be charged under direct sun light for 9 hours before first use.- If the ground is too hard, do not twist or hammer it with force. Try to soften the ground with water and then insert into the ground;- It’s not prevent water-soak, avoid installed in the place of waterlogged easily.- Please avoid shadows when the solar panel is charging.- It can be quickly charged under the strong sunlight, slowly charged in the weak sunlight. The charging time depends on the intensity of the sunlight. The lighting time depends on the intensity of the sunshine and charging time.